PMC SIERRA INC
S-3, 1998-06-04
SEMICONDUCTORS & RELATED DEVICES
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         As filed with the Securities and Exchange Commission on June 3, 1998
                                                Registration No. _______________
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                           ---------------------------


                                    FORM S-3
                             REGISTRATION STATEMENT
                                      Under
                           The Securities Act of 1933
                           ---------------------------

                                PMC-SIERRA, INC.
             (Exact name of Registrant as specified in its charter)
                           ---------------------------

                          8555 Baxter Place, Suite 105
                            Burnaby, British Columbia
                                 Canada V5A 4V7
                                 (604) 415-6000
    (Address, including zip code, and telephone number, including area code,
                  of Registrant's principal executive offices)
                           ---------------------------


          Delaware                                             94-2925073     
- -------------------------------                         ----------------------
(State or other jurisdiction of                         (I.R.S. Employer      
incorporation or organization)                          Identification Number)
                                

                          The Corporation Trust Company
                               1209 Orange Street
                           Wilmington, Delaware 19801
                                 (800) 677-3394
 (Name, address, including zip code, and telephone number, including area code,
                              of agent for service)
                           ---------------------------

                                    Copy to:

                                  Neil J. Wolff
                        Wilson Sonsini Goodrich & Rosati
                            Professional Corporation
                               650 Page Mill Road
                           Palo Alto, California 94304
                                 (650) 493-9300
                           ---------------------------

     APPROXIMATE  DATE OF COMMENCEMENT OF PROPOSED SALE TO PUBLIC:  From time to
time after the effective date of this Registration Statement.

     If the only  securities  being  registered  on this Form are being  offered
pursuant to dividend or interest  reinvestment  plans,  check the following box.
|_|

     If any of the securities being registered on this form are to be offered on
a delayed or continuous  basis  pursuant to Rule 415 under the Securities Act of
1933 (the "Securities  Act"),  other than securities  offered only in connection
with dividend or interest  reinvestment  plans,  please check the following box.
|X|
                           ---------------------------

     If this Form is filed to  register  additional  securities  for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration  statement  number  of the  earlier
effective registration statement for the same offering. |_|

     If this Form is a  post-effective  amendment  filed pursuant to Rule 462(c)
under the  Securities  Act,  check the following box and list the Securities Act
registration  statement number of the earlier effective  registration  statement
for the same offering. |_|

     If delivery of the  prospectus is expected to be made pursuant to Rule 434,
please check the following box. |_|


================================================================================

<PAGE>


<TABLE>
                         CALCULATION OF REGISTRATION FEE

<CAPTION>
        Title of Each               Amount         Proposed         Proposed Maximum     Amount of
     Class of Securities            to be       Maximum Offering       Aggregate       Registration
       to be Registered           Registered     Price Per Unit      Offering Price        Fee
- ------------------------------  -------------- ------------------ ------------------- --------------
<S>                                 <C>             <C>              <C>                 <C>          
Common Stock, $.001 par value       414,635         $38.53           $15,975,886.55      $4,712.89
- ------------------------------  -------------- ------------------ ------------------- --------------
</TABLE>


     The Registrant  hereby amends this  Registration  Statement on such date or
dates as may be necessary to delay its effective date until the Registrant shall
file a further  amendment  which  specifically  states  that  this  Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the  Securities  Act of 1933 or until the  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.

<PAGE>


- --------------------------------------------------------------------------------
Information   contained  herein  is  subject  to  completion  or  amendment.   A
registration  statement  relating  to these  securities  has been filed with the
Securities  and Exchange  Commission.  These  securities may not be sold nor may
offers to buy be accepted prior to the time the registration  statement  becomes
effective.  This  prospectus  shall  not  constitute  an  offer  to  sell or the
solicitation of an offer to buy nor shall there be any sale of these  securities
in any State in which such offer,  solicitation  or sale would be unlawful prior
to registration or qualification under the securities laws of any such State.
- --------------------------------------------------------------------------------

                             SUBJECT TO COMPLETION

                                   PROSPECTUS

                                 414,635 SHARES


                                PMC-SIERRA, INC.

                                  COMMON STOCK

         This  Prospectus  relates  to  an  aggregate  of  414,635  shares  (the
"Shares")  of Common  Stock,  $0.001 par value per share  ("Common  Stock"),  of
PMC-Sierra,  Inc.  (the  "Company"),  which may be resold by the  persons  named
herein (the "Selling  Stockholders") to the public (the "Offering").  The Shares
were issued to the Selling  Stockholders  on May 20, 1998 in connection with the
merger ("Merger") of Integrated Telecom  Technology,  Inc. ("IgT") with and into
PMC-Sierra  (Maryland),  Inc. ("Sub"),  a Delaware  corporation and wholly-owned
subsidiary of  Registrant,  pursuant to an Agreement and Plan of  Reorganization
dated April 15, 1998 among the Company,  Sub, IgT and Samsung  Electronics  Co.,
Ltd., a major  stockholder of IgT. The issuance of the Shares was pursuant to an
exemption from the  registration  requirements of the Securities Act of 1933, as
amended  (the  "Securities  Act").  The  Shares are being  registered  under the
Securities Act in order to permit the public resale or other distribution of the
Shares.

         The Shares may be sold or  distributed  from time to time by or for the
account of the Selling  Stockholders  through  underwriters or dealers,  through
brokers or other agents, or directly to one or more purchasers, at market prices
prevailing at the time of sale or at prices  otherwise  negotiated.  The Company
will  receive  no portion of the  proceeds  from the sale of the Shares  offered
hereby  and will bear  certain  expenses  incident  to their  registration.  See
"Selling Stockholders" and "Plan of Distribution."


                           ---------------------------


         The Common Stock of the Company is traded on the Nasdaq National Market
("Nasdaq")  under the symbol  "PMCS." On June 2, 1998,  the last reported  sales
price for the Common Stock as reported by Nasdaq was $ 40.625 per share.

                           ---------------------------



         PROSPECTIVE  INVESTORS SHOULD CAREFULLY  CONSIDER THE MATTERS SET FORTH
UNDER THE CAPTION "RISK FACTORS" LOCATED ON PAGE 3 OF THIS PROSPECTUS.


    THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
     AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
      SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
          PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY
              REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

                 The date of this Prospectus is _________, 1998


<PAGE>

         NO DEALER,  SALESPERSON OR OTHER PERSON HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION  OR TO MAKE ANY  REPRESENTATIONS  OTHER THAN THOSE  CONTAINED  IN OR
INCORPORATED  BY REFERENCE IN THIS  PROSPECTUS IN CONNECTION WITH THE OFFER MADE
BY THIS PROSPECTUS AND, IF GIVEN OR MADE,  SUCH  INFORMATION OR  REPRESENTATIONS
MUST NOT BE RELIED UPON AS HAVING BEEN  AUTHORIZED  BY THE COMPANY,  SUB, IGT OR
THE SELLING  STOCKHOLDERS.  NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY SALE
MADE HEREUNDER SHALL, UNDER ANY CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THERE
HAS NOT BEEN ANY  CHANGE IN THE FACTS  SET  FORTH IN THIS  PROSPECTUS  OR IN THE
AFFAIRS  OF THE  COMPANY  SINCE  THE  DATE  HEREOF.  THIS  PROSPECTUS  DOES  NOT
CONSTITUTE AN OFFER OR SOLICITATION BY ANYONE IN ANY  JURISDICTION IN WHICH SUCH
OFFER OR SOLICITATION IS NOT AUTHORIZED OR IN WHICH THE PERSON MAKING SUCH OFFER
OR SOLICITATION IS NOT QUALIFIED TO DO SO OR TO ANYONE TO WHOM IT IS UNLAWFUL TO
MAKE SUCH OFFER OR SOLICITATION.


                              AVAILABLE INFORMATION

         The  Company  is  subject  to  the  informational  requirements  of the
Securities  Exchange Act of 1934, as amended (the "Exchange Act"), and the rules
and regulations  promulgated  thereunder,  and, in accordance  therewith,  files
reports,  proxy  and  information  statements  and  other  information  with the
Securities and Exchange Commission (the "Commission").  These reports, proxy and
information  statements  and other  information  concerning  the  Company can be
inspected  and  copied at the  public  reference  facilities  maintained  by the
Commission at Room 1024, 450 Fifth Street, N.W., Washington,  D.C. 20549; and at
the  Commission's  regional  offices  located at Suite  1400,  500 West  Madison
Street,  Chicago,  Illinois 60661 and at Seven World Trade Center, New York, New
York 10048.  Copies of such material can also be obtained from the Commission at
prescribed rates through its Public Reference  Section at 450 Fifth Street,  NW,
Washington,  D.C. 20549.  The public may obtain  information on the operation of
the Public Reference Room by calling the Commission at  1-800-SEC-0330.  The SEC
also maintains a site on the World Wide Web at http://www.sec.gov  that contains
reports,  proxy  and  information  statements  and other  information  regarding
registrants that file electronically with the SEC. The Common Stock is traded on
the Nasdaq National Market.  Information filed by the Company with Nasdaq may be
inspected at the offices of Nasdaq at 1735 K Street, NW, Washington, D.C. 20006.

         The Company has filed with the Commission a  Registration  Statement on
Form S-3 under the  Securities  Act with  respect to the Shares  offered  hereby
(including  all   amendments  and   supplements   thereto,   the   "Registration
Statement").  This Prospectus, which forms a part of the Registration Statement,
does not contain all of the information set forth in the Registration Statement,
certain  parts of which  have  been  omitted  in  accordance  with the rules and
regulations  of the  Commission.  Statements  contained  herein  concerning  the
provisions  of certain  documents  are not  necessarily  complete  and,  in each
instance,  reference is made to the copy of such document filed as an exhibit to
the  Registration  Statement or otherwise filed with the  Commission.  Each such
statement  is  qualified in its  entirety by such  reference.  The  Registration
Statement  and the exhibits  thereto can be  inspected  and copied at the public
reference  facilities and regional  offices of the Commission and at the offices
of Nasdaq referred to above.

                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

         The following documents,  which have been filed by the Company with the
Commission  pursuant to the Exchange Act, are incorporated by reference and made
a part of this Prospectus:  (i) the Company's Annual Report on Form 10-K for the
fiscal year ended December 28, 1997, as amended, and part of the Proxy Statement

<PAGE>

for the Company's 1998 Annual Meeting of Stockholders  relating to directors and
executive officers and security ownership; (ii) all other reports filed pursuant
to  Section  13(a)  or  15(d) of the  Exchange  Act  since  December  28,  1997,
specifically  including  the  Company's  Quarterly  Report  on Form 10-Q for the
quarter ended March 29, 1998 and the Company's Current Reports on Form 8-K dated
April 15, 1998 and May 20, 1998;  (iii) all reports,  definitive proxy statement
and other documents filed by the Company with the Commission pursuant to Section
13(a),  13(c),  14 or 15(d) of the Exchange Act  subsequent  to the date of this
Prospectus and prior to the  termination  of the Offering;  and (iv) all filings
filed by the Company with the Commission  pursuant to the Exchange Act after the
date of filing the initial Registration  Statement with the Commission and prior
to effectiveness of the Registration Statement.

         Any statement  contained in a document or information  incorporated  or
deemed to be incorporated  herein by reference shall be deemed to be modified or
superseded  for  purposes  of this  Prospectus  to the extent  that a  statement
contained  herein  or in any  subsequently  filed  document  that also is, or is
deemed to be,  incorporated  herein by reference,  modifies or  supersedes  such
statement.  Any such  statement so modified or  superseded  shall not be deemed,
except as so modified or superseded, to constitute a part of this Prospectus.

         THE COMPANY  UNDERTAKES  TO PROVIDE,  WITHOUT  CHARGE,  TO EACH PERSON,
INCLUDING ANY BENEFICIAL  OWNER, TO WHOM A COPY OF THIS PROSPECTUS IS DELIVERED,
UPON THE WRITTEN OR ORAL  REQUEST OF SUCH  PERSON,  A COPY OF ANY AND ALL OF THE
DOCUMENTS OR INFORMATION  REFERRED TO ABOVE THAT HAS BEEN OR MAY BE INCORPORATED
BY REFERENCE IN THIS  PROSPECTUS  (EXCLUDING  EXHIBITS TO SUCH DOCUMENTS  UNLESS
SUCH EXHIBITS ARE  SPECIFICALLY  INCORPORATED BY REFERENCE).  REQUESTS SHOULD BE
DIRECTED TO INVESTOR RELATIONS,  PMC-SIERRA, INC., 8555 BAXTER PLACE, SUITE 105,
BURNABY,  BRITISH  COLUMBIA,  CANADA V5A 4V7. THE COMPANY'S  TELEPHONE NUMBER AT
THAT LOCATION IS (604) 415-6000.


                                   THE COMPANY

         PMC-Sierra, Inc. ("PMC" or the "Company") was incorporated in the State
of California in 1983 and reincorporated into the State of Delaware in 1997. All
references to "PMC" or the "Company" include the Company's subsidiaries,  unless
the context  requires  otherwise.  The Company's  principal  executive office is
located at 105-8555 Baxter Place,  Burnaby,  B.C., Canada V5A 4V7. The Company's
telephone number at that location is (604) 415-6000.  The Company's Common Stock
trades on the Nasdaq National Market under the symbol "PMCS."

         The Company designs,  develops,  markets and supports  high-performance
semiconductor  system  solutions  for  advanced   communications   markets.  The
Company's products are used in broadband communications infrastructures and high
bandwidth networks.  The Company is a leading supplier of ATM, SONET/SDH,  T1/E1
and  D3/E3  integrated   circuits  in  the  communications   infrastructure  and
networking  markets and also provides fast ethernet  integrated  circuits to the
networking  markets.  In August 1996 the Company  announced its decision to exit
the  personal  computer  modem  chipset  business,   to  restructure  its  other
non-networking  products  and  focus  on  its  networking  products.  All of the
Company's  modem  products  were disposed of in 1997.  The  Company's  remaining
non-networking  products  are still being sold but no  development  or follow-on
products are planned.


<PAGE>

                   SPECIAL NOTE ON FORWARD-LOOKING STATEMENTS

         Certain  statements  and  information  in this  Registration  Statement
constitute  "forward-looking  statements"  within  the  meaning  of the  federal
securities laws. The actual results, performance, or achievements of the Company
may  be  materially   different   from  those   expressed  or  implied  by  such
forward-looking  statements.  The forward-looking statements include projections
relating to trends in markets, revenues,  particularly expectations of long-term
revenues,  gross margin,  and future  expenditures on research and  development,
marketing,  general and  administrative  expense  and the year 2000  issue.  The
Company  undertakes  no  obligation  to  release  revisions  to  forward-looking
statements to reflect subsequent events.

                                  RISK FACTORS

         An investment in the Shares involves a high degree of risk. In addition
to the  other  information  contained  in this  Registration  Statement,  before
purchasing the Shares,  prospective investors should carefully consider the risk
factors  described as "Factors  Affecting  Operating  Results" in the  Company's
Quarterly  Report on Form 10-Q for the quarter ended March 29, 1998 and in other
documents subsequently filed with the Commission pursuant to Section 13 or 15 of
the Exchange Act.

                                 USE OF PROCEEDS

         The Company will not receive any  proceeds  from the sale of the Shares
but will pay all expenses related to the  registration of the Shares.  See "Plan
of Distribution."

                              SELLING STOCKHOLDERS

         The Shares of the Common Stock of the Company are to be offered for the
account of the Selling Stockholders.  The following table sets forth the name of
each Selling Stockholder, the aggregate maximum number of shares of Common Stock
each Selling Stockholder may be entitled to out of the Shares, and the aggregate
number of shares of Common Stock registered hereby that each Selling Stockholder
may offer and sell pursuant to this  Prospectus.  All of the Shares  offered are
issued and  outstanding as of the date of this  Prospectus.  Because the Selling
Stockholders  may sell or distribute  all or a portion of the Shares at any time
and from time to time  after the date  hereof,  no  estimate  can be made of the
number of shares of Common Stock that each Selling  Stockholder  may retain upon
completion of the Offering.  To the knowledge of the Company, all of the Selling
Stockholders,  except for Samsung,  Yong Min Kim, Lee Lambert, Tom Scholl, Seung
Hwa Yoo, Lisa Bellamy, Adrian Chan, Charles Gershman, Steven Lochner, Ashim Roy,
Michael  Russell,  Srini  Seetharam,  Scott  Shumate,  Robert Smedley and Dinesh
Venkatachalam,  served as employees or consultants of IgT  immediately  prior to
the Merger and currently serve as employees or consultants of Sub. Yong Min Kim,
Lee  Lambert,  Tom Scholl and Seung Hwa Yoo served as  directors of IgT prior to
the Merger.


<PAGE>



                                                                 Shares to be
                                       Shares Entitled to      Offered for the
                                          Prior to the             Selling 
         Selling Stockholder                 Offering            Stockholder

Samsung Electronics Co., Ltd. (1)             327,271                327,271
Braun, Darren                                   1,182                  1,182
Chan, Adrian                                    7,255                  7,255
Chaudri, Imran                                  6,908                  6,908
Chien, Chi-Kai                                  1,689                  1,689
DiPretoro, Jr., Stanley                           179                    179
Gershman, Charles                                 630                    630
Haq, Nadeem                                       946                    946
Kim, Yong Min                                     900                    900
Lambert, Lee                                      900                    900
Lee, Jennifer                                   3,070                  3,070
Lee, Kenneth                                   19,753                 19,753
Lochner, Steven                                    90                     90
Menon, Raghavan                                 2,162                  2,162
Roy, Ashim                                      2,365                  2,365
Scholl, Tom                                       900                    900
Seetharam, Srini                                1,182                  1,182
Smedley, Robert                                 1,576                  1,576
Sprouse, Steven                                 1,970                  1,970
Tall, Gerald                                   11,258                 11,258
Tran, Buu                                         155                    155
Venkatachalam, Dinesh                             720                    720
Wai, Chi                                       11,514                 11,514
Werth, Gregory                                  9,160                  9,160
Yoo, Seung Hwa                                    900                    900
- --------------                                -------                -------
TOTAL                                         414,635                414,635
- ---------------------------                              

(1)      As  of  June  2,  1998,  Samsung  Electronics  Co.,  Ltd.   ("Samsung")
         beneficially owns approximately 1.08% of the Company's Common Stock.

                              PLAN OF DISTRIBUTION

         The Shares may be sold or  distributed  from time to time by or for the
account  of  the  Selling  Stockholders.   The  Selling  Stockholders  will  act
independently  of  the  Company  in  making  decisions  with  respect  to  their
respective sales of the shares.



<PAGE>


         The  Selling  Stockholders  may sell or  distribute  some or all of the
Shares  from time to time  through  underwriters  or dealers or brokers or other
agents or directly to one or more purchasers, in transactions (which may involve
block  transactions)  on Nasdaq,  privately  negotiated  transactions  or in the
over-the-counter  market,  or  in  a  combination  of  such  transactions.  Such
transactions  may be  effected  by the  Selling  Stockholders  at market  prices
prevailing  at the time of sale,  at prices  related to such  prevailing  market
prices, at negotiated prices, or at fixed prices, which may be changed. Brokers,
dealers, agents or underwriters  participating in such transactions as agent may
receive  compensation in the form of discounts,  concessions or commissions from
the Selling  Stockholders  (and,  if they act as agent for the purchaser of such
shares,  from such  purchaser).  Usual and customary or specifically  negotiated
brokerage  fees  or  commissions  may be  paid by the  Selling  Stockholders  in
connection with such sales.

         The Selling Stockholders and any such underwriters, brokers, dealers or
agents that participate in such  distribution may be deemed to be "underwriters"
within the meaning of the  Securities  Act, and any  discounts,  commissions  or
concessions received by any such underwriters,  brokers, dealers or agents might
be deemed to be underwriting discounts and commissions under the Securities Act.
Neither the Company nor the Selling  Stockholders  can  presently  estimate  the
amount of such  compensation.  The  Company  knows of no  existing  arrangements
between any Selling Stockholder and any other Selling Stockholder,  underwriter,
broker,  dealer  or other  agent  relating  to the sale or  distribution  of the
Shares.

         Under  applicable  rules and  regulations  under the Exchange  Act, any
person  engaged in a  distribution  of any of the Shares may not  simultaneously
engage in market  activities  with  respect to the Common  Stock for a period of
nine business days prior to the commencement of such  distribution.  In addition
and without limiting the foregoing,  the Selling Stockholders will be subject to
applicable  provisions  of the  Exchange  Act  and  the  rules  and  regulations
thereunder,  including without  limitation Rules 10b-5,  10b-6 and 10b-7,  which
provisions  may limit the timing of purchases  and sales of any of the Shares by
the Selling  Stockholders.  All of the foregoing may affect the marketability of
the Common Stock.

         The Company will pay substantially all of the expenses incident to this
Offering  of the Shares by the  Selling  Stockholders  to the public  other than
commissions and discounts of underwriters, brokers, dealers or agents.

                          DESCRIPTION OF CAPITAL STOCK

         The  authorized  capital  stock of the Company  consists of  50,000,000
shares of Common  Stock,  par value $0.001,  and  5,000,000  shares of Preferred
Stock, par value $0.001.

         The  following  summary of certain  provisions  of the Common Stock and
Preferred Stock does not purport to be complete  though the Company  believes it
contains all the material  provisions,  and is subject to, and  qualified in its
entirety by, the provisions of the Company's Certificate of Incorporation and by
the provisions of applicable law.

         Common Stock

         The  Company's  Common Stock is  registered  under Section 12(g) of the
Exchange Act.  Subject to preferences  that may be applicable to any outstanding
Preferred  Stock which may be issued in the future,  the holders of Common Stock
are entitled to receive ratably such non-cumulative dividends, if any, as may be
declared  from  time to time by the  Board of  Directors  out of  funds  legally
available therefor. The Common Stock



<PAGE>



has no preemptive or conversion rights or other subscription  rights.  There are
no redemption  or sinking fund  provisions  available to the Common  Stock.  The
holders of Common  Stock are entitled to one vote per share on all matters to be
voted upon by the stockholders, except that stockholders may, in accordance with
Section 214 of the Delaware General Corporation Law, cumulate their votes in the
election of directors. In the event of liquidation, dissolution or winding up of
the Company,  the holders of Common  Stock are entitled to share  ratably in all
assets   remaining  after  payment  of   liabilities,   subject  to  liquidation
preferences,  if any, of Preferred Stock which may be issued in the future.  All
outstanding shares of Common Stock are fully paid and non-assessable.

         Preferred Stock

         Pursuant to the Company's  Certificate of  Incorporation,  the Board of
Directors of the Company has the  authority  to issue up to 5,000,000  shares of
Preferred  Stock  in  one  or  more  series,  to fix  the  rights,  preferences,
privileges  and  restrictions  granted  to or imposed  upon any wholly  unissued
series of  Preferred  Stock,  and to fix the number of shares  constituting  any
series and the  designations of such series,  without any further vote or action
by the  stockholders.  Such issued  Preferred Stock could  adversely  effect the
voting  power and other rights of the holders of Common  Stock.  The issuance of
Preferred Stock may also have the effect of delaying,  deferring or preventing a
change in control of the Company. At present, there are no outstanding shares of
Rights of Holders of Special Shares of PMC-Sierra, Inc.

         Rights of Holders of Special Shares of PMC-Sierra, Inc.

         The Special Shares of PMC-Sierra,  Inc. are redeemable for Common Stock
of the Company.  Special Shares do not have voting rights in the Company, but in
all other respects they represent the economic and functional  equivalent of the
Common  Stock of the Company for which they can be  redeemed.  Under  applicable
law,  each class of Special  Shares  will have  class  voting  rights in certain
circumstances  with respect to transactions  that effect the rights of the class
and for  certain  extraordinary  corporate  transactions.  Two kinds of  Special
Shares are outstanding: A Special Shares and B Special Shares.

         Delaware Law

         Section 203 of the Delaware  General  Corporation  Law,  from which the
Company has not opted out in its Certificate of Incorporation, restricts certain
"business combinations" with "interested stockholders" for three years following
the date that a person or entity becomes an interested  stockholder,  unless the
Company's Board of Directors  approves the business  combination  and/or certain
other requirements are met.

                                  LEGAL MATTERS

         The validity of the Shares  offered  hereby will be passed upon for the
Company by Wilson Sonsini Goodrich & Rosati, Professional Corporation.

                                     EXPERTS


The consolidated financial statements of PMC-Sierra,  Inc. at December 28, 1997,
and for the year then  ended,  appearing  in this  Prospectus  and  Registration
Statement have been audited by Deloitte & Touche,  independent auditors,  and at
December  31, 1996,  and for each of the two years in the period ended  December
31,  1996,  by Ernst & Young LLP,  independent  auditors,  as set forth in their
respective reports thereon incorporated by reference herein, and are included in
reliance  upon such reports given upon the authority of such firms as experts in
accounting and auditing.



<PAGE>


                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS


ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

         The following  table sets forth the expenses  payable by the Registrant
in connection with the filing of this Registration Statement (1).


Securities and Exchange Commission Filing Fee                       $4,712.89

Nasdaq Additional Listing Fee                                       $8,292.70

Printing and Engraving Expenses                                     $1,000.00

Legal Fees and Expenses                                             $5,000.00

Accounting Fees and Expenses                                        $5,000.00

Blue Sky Fees and Expenses                                                ---
Transfer Agent and Registration Fees                                $1,000.00

Miscellaneous expenses                                              $1,994.41

Total                                                              $27,000.00

- ---------------------------
(1)  All of such  expenses, other  than the filing  fee for the  Commission  and
additional  listing  fee for  Nasdaq,  are  estimates  and are subject to future
contingencies.

ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

         The  Certificate  of  Incorporation  of  the  Company   eliminates  the
liability  of  directors  to the  Company  for  monetary  damages  for breach of
fiduciary  duty as a director to the fullest extent  permissible  under Delaware
law, as such law exists  currently or as it may be amended in the future.  Under
Delaware  law,  such  provision  may not  eliminate or limit  director  monetary
liability for: (a) breaches of the director's  duty of loyalty to the Company or
its  stockholders;  (b)  acts  or  omissions  not in  good  faith  or  involving
intentional misconduct or knowing violations of law; (c) the payment of unlawful
dividends or unlawful stock  repurchases or redemptions;  or (d) transactions in
which the director  received an improper  personal  benefit.  Such limitation of
liability provisions also may not limit a director's liability for violation of,
or  otherwise  relieve  the  Company  or its  directors  from the  necessity  of
complying with,  federal or state securities laws, or affect the availability of
non-monetary remedies such as injunctive relief or rescission.

         The  Company's  Bylaws  provide that the Company  shall  indemnify  its
directors  and officers and may  indemnify its employees and other agents to the
fullest extent permitted by law. The Company believes that indemnification under
its  Bylaws  covers  at least  negligence  and gross  negligence  on the part of
indemnified  parties.  The  Company's  Bylaws  also permit the Company to secure
insurance  on behalf of any officer,  director,  employee or other agent for any
liability  arising out of his or her  actions in such  capacity,  regardless  of
whether the Company  would have the power to  indemnify  him or her against such
liability under the General  Corporation Law of Delaware.  The Company currently
has secured such insurance on behalf of its officers and directors.


<PAGE>



         The Company has entered into  agreements to indemnify its directors and
officers,  in addition to indemnification  provided for in the Company's Bylaws.
Subject to certain conditions,  these agreements,  among other things, indemnify
the Company's directors and officers for certain expenses (including  attorney's
fees),  judgments,  fines and settlement  amounts incurred by any such person in
any  action  or  proceeding,  including  any  action  by or in the  right of the
Company,  arising out of such person's  services as a director or officer of the
Company,  any  subsidiary  of the Company or any other  company or enterprise to
which the person provides services at the request of the Company.


ITEM 16.  EXHIBITS

         The  following   exhibits  are  filed  as  part  of  this  Registration
Statement:

NUMBER            EXHIBIT DESCRIPTION

5.1               Opinion of Counsel as to the validity of the Shares.
23.1              Consent of Counsel (included in Exhibit 5.1 above).
23.2              Consent of Ernst & Young LLP.
23.3              Consent of Deloitte & Touche.
24.1              Power of Attorney (see page II-4).


ITEM 17.  UNDERTAKINGS.

         (a)  The undersigned Registrant hereby undertakes:

                  (1)  To file, during any  period in which  offers or sales are
being made, a post-effective amendment to this Registration Statement:

                                 (i)      To include any  prospectus required by
 Section 10(a)(3) of the Securities Act;

                                 (ii)     To reflect in the prospectus any facts
or events  arising after the effective date of this  Registration  Statement (or
the most recent post-effective amendment thereof) which,  individually or in the
aggregate,  represent a fundamental  change in the information set forth in this
Registration Statement;

                                 (iii)    To include  any  material  information
with  respect  to the plan of  distribution  not  previously  disclosed  in this
Registration  Statement  or any  material  change  to such  information  in this
Registration Statement.

                                 Provided,  however,  that paragraphs  (a)(1)(i)
and (a)(1)(ii) above do not apply if the information  required to be included in
a post-effective  amendment by these paragraphs is contained in periodic reports
filed with or furnished by the Registrant pursuant to Section 13 or 15(d) of the
Exchange Act that are incorporated by reference in this Registration Statement.

                  (2)  That, for the purpose of determining any liability  under
the Securities Act, each such  post-effective  amendment shall be deemed to be a
new registration  statement  relating to the securities  offered herein, and the
offering of such  securities at that time shall be deemed to be the initial bona
fide offering thereof.

<PAGE>



                  (3)  To remove from registration by means of a  post-effective
amendment  any of the  securities  being  registered  which remain unsold at the
termination of the Offering.

         (b)  The undersigned Registrant hereby undertakes that, for purposes of
determining  any  liability  under  the  Securities  Act,  each  filing  of  the
Registrant's  annual  report  pursuant to Section  13(a) or Section 15(d) of the
Exchange Act that is  incorporated by reference in this  Registration  Statement
shall be deemed to be a new  registration  statement  relating to the securities
offered herein, and the offering of such securities at that time shall be deemed
to be the initial bona fide offering thereof.

         (c)  Insofar  as  indemnification  for  liabilities  arising  under the
Securities Act may be permitted to directors,  officers and controlling  persons
of the  Registrant  pursuant to the  foregoing  provisions,  or  otherwise,  the
Registrant  has  been  advised  that  in  the  opinion  of the  Commission  such
indemnification  is against public policy as expressed in the Securities Act and
is,  therefore,  unenforceable.  In the event  that a claim for  indemnification
against such  liabilities  (other than the payment by the Registrant of expenses
incurred or paid by a director,  officer or controlling person of the Registrant
in the successful defense of any action, suit or proceeding) is asserted by such
director,  officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been  settled by  controlling  precedent,  submit to a court of  appropriate
jurisdiction the question whether such  indemnification  by it is against public
policy as  expressed  in the  Securities  Act and will be  governed by the final
adjudication of such issue.


<PAGE>


                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, as amended,
the Registrant certifies that it has reasonable grounds to believe that it meets
all of the  requirements  for  filing  on  Form  S-3 and has  duly  caused  this
registration  statement or  amendment  thereto to be signed on its behalf by the
undersigned, thereunto duly authorized, in Burnaby, British Columbia, Canada, on
June 1, 1998.

                                     PMC-SIERRA, INC.

                                     By:  /s/ ROBERT L. BAILEY
                                     -----------------------------------------
                                     Robert L. Bailey, Chief Executive Officer
                                     (Principal Executive Officer)


                                POWER OF ATTORNEY

         KNOW ALL PERSONS BY THESE  PRESENTS,  that each person whose  signature
appears  below  constitutes  and  appoints  Robert L. Bailey and John  Sullivan,
jointly  and  severally,   his   attorneys-in-fact,   each  with  the  power  of
substitution,  for him in any and all capacities, to sign any amendments to this
Registration  Statement on Form S-3, and to file the same, with exhibits thereto
and other  documents in connection  therewith,  with the Securities and Exchange
Commission,   hereby   ratifying   and   confirming   all  that   each  of  said
attorneys-in-fact,  or his substitute or substitutes, may do or cause to be done
by virtue hereof.

         Pursuant to the  requirements of the Securities Act, this  registration
statement has been signed by the following  persons in the capacities and on the
dates indicated.


        Signature                       Title                         Date
        ---------                       -----                         ----

/s/ ROBERT L. BAILEY       President, Chief Executive Officer     June 1, 1998
- --------------------       (Principal Executive Officer) and
Robert L. Bailey           Director
                           

/s/ JOHN SULLIVAN          Vice President, Finance (Principal     June 1, 1998
- -----------------          Financial and Accounting Officer)
John Sullivan              

/s/ALEXANDRE BALKANSKI     Director                               June 1, 1998
- ----------------------
Alexandre Balkanski

/s/ COLIN BEAUMONT         Director                               May 30, 1998
- -----------------
Colin Beaumont

/s/ JAMES V. DILLER        Chairman of the Board of Directors     June 1, 1998
- -------------------
James V. Diller

/s/ FRANK J. MARSHALL      Director                               May 30, 1998
- ---------------------
Frank J. Marshall



<PAGE>


                                  EXHIBIT INDEX


NUMBER            EXHIBIT DESCRIPTION

5.1               Opinion of Counsel as to the validity of the Shares.
23.2              Consent of Ernst & Young LLP
23.3              Consent of Deloitte & Touche







                        WILSON SONSINI GOODRICH & ROSATI
                            PROFESSIONAL CORPORATION


                               650 PAGE MILL ROAD
                        PALO ALTO, CALIFORNIA 94304-1050
                  TELEPHONE 650-493-9300 FACSIMILE 650-493-6811

                                                               JOHN ARNOT WILSON
                                                                         RETIRED



                                        June 3, 1998

PMC-Sierra, Inc.
105-8555 Baxter Place
Burnaby, British Columbia
Canada V5A 4V7

         Re: Registration Statement on Form S-3

Gentlemen & Ladies:

         In  connection  with your  preparation  and filing of the  Registration
Statement on Form S-3 under the  Securities  Act of 1933 relating to the sale by
the  persons  named  therein to the  public,  in  connection  with the merger of
Integrated Telecom Technology, Inc. ("IgT") with and into PMC-Sierra (Maryland),
Inc. ("Sub"), a Delaware corporation and wholly-owned  subsidiary of Registrant,
pursuant to an Agreement and Plan of  Reorganization  dated April 15, 1998 among
the Company, Sub, IgT and Samsung Electronics Co., Ltd., of up to 414,635 shares
of your Common Stock,  $0.001 par value per share  ("Shares"),  all of which are
issued  and  outstanding,  we have  examined  originals  or copies of  corporate
records,  certificates of public officials and officers of the Company and other
instruments  relating to the authorization and issuance of the Shares as we have
deemed relevant and necessary for the opinion hereinafter expressed.

         On the basis of the foregoing,  we are of the opinion that the issuance
of the  Shares has been duly  authorized  by your  Board of  Directors,  and the
Shares are validly issued, fully paid and nonassessable.

         We hereby  consent  to the  filing of the  opinion as an exhibit to the
Registration  Statement  and  further  consent  to the use of our name  wherever
appearing in the Registration Statement.

                                        Sincerely,

                                        /s/ Wilson Sonsini Goodrich & Rosati
                                        ------------------------------------
                                        WILSON SONSINI GOODRICH & ROSATI
                                        Professional Corporation





                         CONSENT OF INDEPENDENT AUDITORS



We  consent to the  reference  to our firm under the  caption  "Experts"  in the
Registration Statement (Form S-3) and related Prospectus of PMC-Sierra, Inc. for
the registration of 414,635 shares of its common stock and to the  incorporation
by reference  therein of our report dated January 22, 1997,  with respect to the
consolidated  financial  statements and schedule of PMC-Sierra,  Inc.  (formerly
Sierra Semiconductor Corporation) as of December 31, 1996, and for the two years
in the period ended  December 31, 1996 included in its Annual Report (Form 10-K)
for the year ended  December  28, 1997 filed with the  Securities  and  Exchange
Commission.




/s/ Ernst & Young LLP


San Jose, California
June 2, 1998



               CONSENT OF DELOITTE & TOUCHE, INDEPENDENT AUDITORS


We  consent to the  reference  to our firm under the  caption  "Experts"  in the
Registration  Statement (Form S-3), and related  Prospectus of PMC-Sierra,  Inc.
for  the  registration  of  414,635  shares  of  its  common  stock  and  to the
incorporation  by reference  therein of our report dated January 22, 1998,  with
respect to the  consolidated  financial  statements and schedules of PMC-Sierra,
Inc.  included in its Annual Report (Form 10-K) for the year ended  December 28,
1997, filed with the Securities and Exchange Commission.




/s/ Deloitte & Touche

Vancouver, British Columbia, Canada
June 3, 1998





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